When it comes to defrosting, I prefer to let the meat sit under running water. The movement of the water over the meat seems to speed up defrosting tremendously. If I'm not in a rush, I do it with cool water, but I have gone as high as luke warm (but not warm/hot) water when in a rush.

I think that i would still be more leaning towards cold water than hot. I would think that hot water would be way to forceful and change the end quality. How? I don't know and honestly, I don't thank that I would ever do that. In my experience, Steaks respond best to slow. And cold tap water would be the way to go because the temp would change slower than if using hot water.